Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2007	Jan. 01, 2007
Income Tax Disclosure [Line Items]
Valuation allowance	$ 34,022,000	$ 37,903,000
Net deferred tax asset	8,839,000	12,648,000
Net deferred tax asset, current	3,273,000	3,659,000
Net deferred tax asset, noncurrent	5,566,000	8,989,000
Net operating loss carry forwards	15,200,000
Alternative minimum tax carry forwards	3,291,000	3,118,000
Accrued income taxes	20,800,000
Accrued income taxes, current	8,300,000
Non-current tax liabilities	12,500,000
Accrued income taxes, current judgment	3,500,000
Accrued income taxes, noncurrent judgment	11,500,000
Gross tax benefits	2,160,000	2,171,000	1,974,000	8,058,000	11,400,000	10,800,000
Unrecognized tax interest	1,800,000	3,200,000	2,200,000	12,600,000	2,300,000	1,700,000
Increase (decrease) to unrecognized tax benefits	0	200,000	(6,100,000)	(3,400,000)
Increase (decrease) to unrecognized tax interest	(1,400,000)	1,100,000	(10,400,000)	8,800,000
Unrecognized tax benefits and interest	3,900,000	5,300,000	4,100,000	20,600,000
Unrecognized tax benefits that would impact of effective tax rate if recognized	2,900,000	4,300,000	3,000,000
Uncertain tax position probable changes in next 12 months, minimum	500,000
Uncertain tax position probable changes in next 12 months, maximum	1,500,000
Australia [Member]
Income Tax Disclosure [Line Items]
Line of credit facility, maximum borrowing capacity	100,000,000
Net deferred tax asset			14,400,000
Net deferred tax asset, current			3,400,000
Net deferred tax asset, noncurrent			11,000,000
Net operating loss carry forwards	26,000,000
United States [Member]
Income Tax Disclosure [Line Items]
Alternative minimum tax carry forwards	3,300,000
New Zealand [Member]
Income Tax Disclosure [Line Items]
Net operating loss carry forwards	11,800,000
Puerto Rico [Member]
Income Tax Disclosure [Line Items]
Net operating loss carry forwards	14,100,000
Net operating loss carryforwards, expiration dates	2018
Minimum [Member]
Income Tax Disclosure [Line Items]
Ownership percentage	20.00%
Maximum [Member]
Income Tax Disclosure [Line Items]
Ownership percentage	50.00%
Expire Between 2025 And 2030 [Member]
Income Tax Disclosure [Line Items]
Net operating loss carry forwards	8,700,000
Expire Between 2025 And 2030 [Member] | Minimum [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards, expiration dates	2025
Expire Between 2025 And 2030 [Member] | Maximum [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards, expiration dates	2030
Expire Between 2030 And 2035 [Member]
Income Tax Disclosure [Line Items]
Net operating loss carry forwards	$ 6,500,000
Expire Between 2030 And 2035 [Member] | Minimum [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards, expiration dates	2030
Expire Between 2030 And 2035 [Member] | Maximum [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards, expiration dates	2035